المادة وتركيبها: العدد الكتلى والعدد الذرى

المادة وتركيبها: العدد الكتلى والعدد الذرى

Assessment

Interactive Video

English, Other

1st - 9th Grade

Hard

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The video tutorial explains the concepts of mass and atomic numbers in chemistry, using the sodium atom as an example. It describes how the mass number is the sum of protons and neutrons, while the atomic number represents the number of protons. The tutorial also demonstrates how to calculate the number of neutrons by subtracting the atomic number from the mass number. This understanding is crucial for identifying and describing elements.

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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